WRT fidelity of reproduction, yes – but the scale is described in terms of defects that we'd object to regardless of whether they were faithful to the original mind. Most people would prefer to be resurrected with higher intelligence and better memory than they originally had, for instance.

It might be better to describe (edit: as Tenoke already did) the imperfect resurrection as causing not impairment but change: the restored mind is fully functional, but some information is lost and must be replaced with inaccurate reconstructions. The resurrected patient is not quite the same person as before; everything that made them who they are – their personality, their tastes and inclinations, their memories, their allegiances and cares and loves – is different. How inaccurate a resurrection is even worthwhile? How long would you wait (missing out on centuries of life!) for better accuracy?

(This is reminiscent of the scenario where a person is reconstructed from their past behavior instead of their brain. The result might resemble the original, but it's unlikely to be very faithful; in particular, secrets they never revealed would be almost impossible to recover, and some such secrets are important.)